M - UC Berkeley Astronomy w
... SEDs from optical through mm wavelengths Observations of the gas; NIR ro-vibrational transitions of molecules mm rotational transitions of of molecules • The dust is easier and more frequently observed. • The gas and dust are not always co-spatial. • The focus is now on the gas. • SPITZER IRS adds a ...
... SEDs from optical through mm wavelengths Observations of the gas; NIR ro-vibrational transitions of molecules mm rotational transitions of of molecules • The dust is easier and more frequently observed. • The gas and dust are not always co-spatial. • The focus is now on the gas. • SPITZER IRS adds a ...
ppt
... stars are surrounded by solar system-sized dusty discs. • Could this mean that half of all Sun-like stars have planetary systems? ...
... stars are surrounded by solar system-sized dusty discs. • Could this mean that half of all Sun-like stars have planetary systems? ...
Violent Adolescent Planet Caught Infrared Handed
... The presence of the SiO gas, which can be formed by vaporizing rocks, and silica-rich glass have led to the collision interpretation. Although collisions seem to explain the current data, the probability of observing a collision is low. Current models of terrestrial planet formation give an approxim ...
... The presence of the SiO gas, which can be formed by vaporizing rocks, and silica-rich glass have led to the collision interpretation. Although collisions seem to explain the current data, the probability of observing a collision is low. Current models of terrestrial planet formation give an approxim ...
Star Search Game: Constructing a Hertzsprung
... Star Search Game: Constructing a Hertzsprung-Russell Diagram Inspired by: Ian Christie (VSSEC); Activity created by: Nandita Bajaj Introduction: Star Search is an online game developed by the Victorian Space Science Education Centre (VSSEC) that allows the user to go on a simulated journey into spac ...
... Star Search Game: Constructing a Hertzsprung-Russell Diagram Inspired by: Ian Christie (VSSEC); Activity created by: Nandita Bajaj Introduction: Star Search is an online game developed by the Victorian Space Science Education Centre (VSSEC) that allows the user to go on a simulated journey into spac ...
science of xmas quiz
... b) Space dust freezes upon entering our atmosphere c) Cloud temperatures reach freezing point allowing ice crystals to form around dust particles. d) The wind blows sea salt into the upper atmosphere ...
... b) Space dust freezes upon entering our atmosphere c) Cloud temperatures reach freezing point allowing ice crystals to form around dust particles. d) The wind blows sea salt into the upper atmosphere ...
PH709-assn-answers
... (ii) high eccentricity. Technique: Radial velocity It is the most successful method so far . Observable is the line of sight velocity of the star orbiting centre of mass of star - planet binary system. Direct imaging of the planets is difficult because of the enormous difference in brightness betwee ...
... (ii) high eccentricity. Technique: Radial velocity It is the most successful method so far . Observable is the line of sight velocity of the star orbiting centre of mass of star - planet binary system. Direct imaging of the planets is difficult because of the enormous difference in brightness betwee ...
Lab 06: The Discovery of ExoPlanet 51 Pegasi b
... Until very recently, the most common method of exoplanet detection involves radial velocity measurements. As we know, the light from an object moving towards us will be shifted toward shorter wavelengths (blue-shifted), and motion away results in light that is red-shifted towards longer wavelengths. ...
... Until very recently, the most common method of exoplanet detection involves radial velocity measurements. As we know, the light from an object moving towards us will be shifted toward shorter wavelengths (blue-shifted), and motion away results in light that is red-shifted towards longer wavelengths. ...
Masers and high mass star formation Claire Chandler
... However, Sato et al. (2005) obtained Brg and 12.8 m images where the central compact object seen in H and K’ is not seen.They interpret these results to imply that the central star is less massive than 8 solar masses and thus an intermediatemass young star and not a true high mass star. ...
... However, Sato et al. (2005) obtained Brg and 12.8 m images where the central compact object seen in H and K’ is not seen.They interpret these results to imply that the central star is less massive than 8 solar masses and thus an intermediatemass young star and not a true high mass star. ...
Epsilon Aurigae Mystery and Opportunity
... • During the 2003-2004 observing season this variation had sped up to 71 days. • In 2007-2008 the period became 65 days. ...
... • During the 2003-2004 observing season this variation had sped up to 71 days. • In 2007-2008 the period became 65 days. ...
Star formation - Grosse Pointe Public School System
... – In contrast, a 15-solarmass star can contract in only 160,000 years. – Conversely, a star of 0.2 solar mass takes 1 billion years to reach the main sequence. ...
... – In contrast, a 15-solarmass star can contract in only 160,000 years. – Conversely, a star of 0.2 solar mass takes 1 billion years to reach the main sequence. ...
Quantum Well Electron Gain Structures and Infrared
... • This is because they are easiest to find with the Doppler technique; but Kepler mission (transits) is changing that • Have found: multiple planet systems (20+); planet atmospheres; some low-mass (probably solid) planets • Eccentricity seems more common than circular orbits; problems for life • So ...
... • This is because they are easiest to find with the Doppler technique; but Kepler mission (transits) is changing that • Have found: multiple planet systems (20+); planet atmospheres; some low-mass (probably solid) planets • Eccentricity seems more common than circular orbits; problems for life • So ...
WORD - hrsbstaff.ednet.ns.ca
... c. Pulsar Planet - A type of extrasolar planet that is found orbiting pulsars, or rapidly rotating neutron stars d. Gas Giant - A type of extrasolar planet with similar mass to Jupiter and composed on gases e. Super-Earth – A gaseous extrasolar planet with a mass higher than Earth's, but substantial ...
... c. Pulsar Planet - A type of extrasolar planet that is found orbiting pulsars, or rapidly rotating neutron stars d. Gas Giant - A type of extrasolar planet with similar mass to Jupiter and composed on gases e. Super-Earth – A gaseous extrasolar planet with a mass higher than Earth's, but substantial ...
01.05.10 Centuries-Old Star Mystery Coming to a Close For almost
... everything to fall together perfectly until now." According to the astronomers, there are still many more details to figure out. The ongoing observations of the current eclipse should provide the final clues needed to put this mystery of the night sky to rest. ...
... everything to fall together perfectly until now." According to the astronomers, there are still many more details to figure out. The ongoing observations of the current eclipse should provide the final clues needed to put this mystery of the night sky to rest. ...
gas planets - Caltech GPS
... dust disks are known to occur around most stars less than 1 million years old, but few stars older than 5 million years possess such disks. Thi et al. have now measured the amount of H2 gas in the smallish dust disks found around three stars between 8 million and 30 million years old. Previous obser ...
... dust disks are known to occur around most stars less than 1 million years old, but few stars older than 5 million years possess such disks. Thi et al. have now measured the amount of H2 gas in the smallish dust disks found around three stars between 8 million and 30 million years old. Previous obser ...
Nebula Beginnings - University of Dayton
... titanic supernova explosions scatter this material back into space where it is used to create new generations of stars. This is the mechanism by which the gas and dust that formed our solar system became enriched with the elements that sustain life on this planet. Hubble spectroscopic observations w ...
... titanic supernova explosions scatter this material back into space where it is used to create new generations of stars. This is the mechanism by which the gas and dust that formed our solar system became enriched with the elements that sustain life on this planet. Hubble spectroscopic observations w ...
two new very hot jupiters in the flames spotlight
... as heavy as Jupiter and about 15% larger. It orbits an F-dwarf star (slightly hotter and more massive than the Sun) once every 1.69 days at a distance of 4.6 million km (0.0306 AU). The photometric transit observed by OGLE is close to the detectability limit. As a consequence, the derived physical p ...
... as heavy as Jupiter and about 15% larger. It orbits an F-dwarf star (slightly hotter and more massive than the Sun) once every 1.69 days at a distance of 4.6 million km (0.0306 AU). The photometric transit observed by OGLE is close to the detectability limit. As a consequence, the derived physical p ...
The Turbulent Birth of Stars and Planets - Max-Planck
... also expanding clouds of matter resulting from so-called supernova explosions, in which more massive stars end their lives – necessary in order for new stars to form? Thomas Henning is convinced that external triggers play a supporting role at best: “Turbulence in the clouds is perfectly sufficient ...
... also expanding clouds of matter resulting from so-called supernova explosions, in which more massive stars end their lives – necessary in order for new stars to form? Thomas Henning is convinced that external triggers play a supporting role at best: “Turbulence in the clouds is perfectly sufficient ...
Astrometry
... • Different dependence on orbital separation than radial velocity method - astrometric planet searches are more sensitive at large orbital distance, a • Explicit dependence on d (distance to the star). radial velocity measurements not explicitely sensitive to stellar distance, but practically more ...
... • Different dependence on orbital separation than radial velocity method - astrometric planet searches are more sensitive at large orbital distance, a • Explicit dependence on d (distance to the star). radial velocity measurements not explicitely sensitive to stellar distance, but practically more ...
Orbits Sample Calculation Word Document | GCE AS/A
... [N.B. Ignore the uncertainty figures; they are only included to give an idea of the accuracies involved] Use the same method to show that the mass of the companion is about 25 Jupiter masses and therefore is likely to be a brown dwarf. If you want to see the original paper from which these data come ...
... [N.B. Ignore the uncertainty figures; they are only included to give an idea of the accuracies involved] Use the same method to show that the mass of the companion is about 25 Jupiter masses and therefore is likely to be a brown dwarf. If you want to see the original paper from which these data come ...
Observational Constraints The Nebular Hypothesis
... 1. Small dust grains grow into larger—but still relatively small—asteroid-like bodies called planetesimals. 2. Planetesimals repeated crash into each other, resulting in increasingly large planetesimals. Some of these objects grow large enough to be called protoplanets. 3. As the protoplanets grow t ...
... 1. Small dust grains grow into larger—but still relatively small—asteroid-like bodies called planetesimals. 2. Planetesimals repeated crash into each other, resulting in increasingly large planetesimals. Some of these objects grow large enough to be called protoplanets. 3. As the protoplanets grow t ...
doc - EU-HOU
... (IAP) and Michel and Suzanne Faye, who tested it in high schools. It has been subsequently updated by Stefano Bertone, Gilles Chagnon and Anne-Laure Melchior. In this exercise, we explain how an invisible companion orbiting its parent star can be detected using precise measurement of the star’s velo ...
... (IAP) and Michel and Suzanne Faye, who tested it in high schools. It has been subsequently updated by Stefano Bertone, Gilles Chagnon and Anne-Laure Melchior. In this exercise, we explain how an invisible companion orbiting its parent star can be detected using precise measurement of the star’s velo ...
formation1
... 200,000 light years. Let just call it 250,000 light years. (for ease of calculation) • If an O-star forms that has the same orbit as the Sun but has a total lifetime of 1 ...
... 200,000 light years. Let just call it 250,000 light years. (for ease of calculation) • If an O-star forms that has the same orbit as the Sun but has a total lifetime of 1 ...
Final Exam - Practice questions for Unit V
... can be detected with the radial velocity method, but not with transits. can be detected with the transit method, but not with radial velocities. can be detected with both the transit and radial velocity methods. cannot be detected with either transits or radial velocities. cannot be detected with tr ...
... can be detected with the radial velocity method, but not with transits. can be detected with the transit method, but not with radial velocities. can be detected with both the transit and radial velocity methods. cannot be detected with either transits or radial velocities. cannot be detected with tr ...
Origin w-o rev 01 16 MC 03 FIB 06 TF 02 E Questions on the Solar
... 10. The large planetesimals would have grown faster than the smaller planetesimals because a. they were moving faster in their orbits than the smaller planetesimals. b. their stronger gravity would pull in more material. c.there was more material located near them that could be accreted. d.the small ...
... 10. The large planetesimals would have grown faster than the smaller planetesimals because a. they were moving faster in their orbits than the smaller planetesimals. b. their stronger gravity would pull in more material. c.there was more material located near them that could be accreted. d.the small ...
Beta Pictoris
Beta Pictoris (β Pic, β Pictoris) is the second brightest star in the constellation Pictor. It is located 63.4 light years from our solar system, and is 1.75 times as massive and 8.7 times as luminous as the Sun. The Beta Pictoris system is very young, only 8–20 million years old, although it is already in the main sequence stage of its evolution. Beta Pictoris is the title member of the Beta Pictoris moving group, an association of young stars which share the same motion through space and have the same age.Beta Pictoris shows an excess of infrared emission compared to normal stars of its type, which is caused by large quantities of dust and gas (including carbon monoxide) near the star. Detailed observations reveal a large disk of dust and gas orbiting the star, which was the first debris disk to be imaged around another star. In addition to the presence of several planetesimal belts and cometary activity, there are indications that planets have formed within this disk and that the processes of planet formation may still be ongoing. Material from the Beta Pictoris debris disk is thought to be the dominant source of interstellar meteoroids in our solar system.The European Southern Observatory (ESO) has confirmed the presence of a planet, Beta Pictoris b, matching previous predictions, through the use of direct imagery, orbiting in the plane of the debris disk surrounding the star. This planet is currently the closest extrasolar planet to its star ever photographed: the observed separation is roughly the same as the distance between Saturn and the Sun.